Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

Page Load Speed

1.5 sec in total

First Response

203 ms

Resources Loaded

1.1 sec

Page Rendered

194 ms

stanford.cbinsights.com screenshot

About Website

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Key Findings

We analyzed Stanford.cbinsights.com page load time and found that the first response time was 203 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

stanford.cbinsights.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value13.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value27.0 s

0/100

25%

SI (Speed Index)

Value16.6 s

0/100

10%

TBT (Total Blocking Time)

Value3,400 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value30.8 s

0/100

10%

Network Requests Diagram

stanford.cbinsights.com

203 ms

cloudflare.min.js

7 ms

upenn.css

196 ms

xml6zqv.js

149 ms

marketing.css

276 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 32% of them (6 requests) were addressed to the original Stanford.cbinsights.com, 37% (7 requests) were made to Use.typekit.net and 11% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (304 ms) belongs to the original domain Stanford.cbinsights.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 164.6 kB (70%)

Content Size

233.7 kB

After Optimization

69.1 kB

In fact, the total size of Stanford.cbinsights.com main page is 233.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. CSS take 192.4 kB which makes up the majority of the site volume.

HTML Optimization

-55%

Potential reduce by 5.4 kB

  • Original 9.8 kB
  • After minification 9.7 kB
  • After compression 4.4 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 5.4 kB or 55% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 3.9 kB
  • After minification 3.9 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Stanford CB Insights images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 128 B

  • Original 27.6 kB
  • After minification 27.6 kB
  • After compression 27.5 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-83%

Potential reduce by 159.1 kB

  • Original 192.4 kB
  • After minification 191.8 kB
  • After compression 33.3 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Stanford.cbinsights.com needs all CSS files to be minified and compressed as it can save up to 159.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (30%)

Requests Now

10

After Optimization

7

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stanford CB Insights. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

stanford.cbinsights.com accessibility score

97

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

stanford.cbinsights.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

stanford.cbinsights.com SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stanford.cbinsights.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Stanford.cbinsights.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of Stanford CB Insights. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: